Walker 350-34671 Oxygen Sensor - Upstream

Walker 350-34671 Oxygen Sensor Overview

Walker Products 350-34671 is a heated oxygen sensor built as a specific-fit OE replacement for select Acura applications. It is engineered to deliver the diagnostic feedback the ECU expects, helping maintain proper fuel control and emissions performance on the vehicles it was matched to.

Compatible with 2000-2003 Acura TL upstream and 2001-2003 Acura CL upstream, this Walker Products Aftermarket sensor is a direct-fit option for drivers addressing a failed upstream oxygen sensor. The Walker Products 350-34671 is designed around the application’s mounting position, connector style, and wiring requirements.

Key Features

• Heated oxygen sensor for faster operating response
• Specific fit for the listed Acura applications
• Upstream mounting position
• 4-wire design with 20-gauge wiring
• Threaded mount with 18.0 mm thread diameter
• Radiused polygon connector shape with male connector gender
• Wiring harness length: 14.37
• Overall length: 17.71

Product Details

Walker Products develops engine management and oxygen/air-fuel sensors as OE-style replacements for a wide range of vehicles. Part number 350-34671 is built for the specific application and fitment position, so the sensor can provide the ECU with the feedback needed for proper system operation. For Acura TL and Acura CL models, the upstream oxygen sensor plays an important role in air-fuel monitoring and emissions control.

This part cross-references no listed alternate part numbers in the provided data. Walker Products 350-34671 is a practical choice when replacing a worn or failed upstream sensor on 2000-2003 Acura TL and 2001-2003 Acura CL models.

What It Helps Address

• Check engine light related to oxygen sensor performance
• Poor engine operation caused by incorrect air-fuel feedback
• Increased fuel consumption from inaccurate sensor readings
• Higher exhaust emissions from a failing upstream sensor
• Fault codes stored in the ECU for the affected sensor circuit

Installation Notes and Tips

Verify the connector shape, wire count, and threaded mounting location before installation. Inspect the sensor wiring harness and connector for physical damage, since damaged wiring can shorten sensor life and affect operation. This part installs in the upstream position on the listed Acura TL and Acura CL applications.

Quality Assurance

Walker Products states that its engine management sensors are manufactured under Automotive ISO9001/TS 16949 quality systems and developed for OE replacement use. Since 1946, the brand has focused on engine management and fuel system components for vehicle applications.